19
Pressure build-up
Pressure reduction
The appropriate valves 9a, 9b and 9c, 9d and
the electrical exhaust solenoid valve 5 are
opened. The air can flow through the exhaust
solenoid 5 to open the pneumatic, pilot oper-
ated exhaust solenoid 6.
When the pneumatic springs are filled by the
accumulator, the valve 10 and the valves 9 for
the appropriate axle open.
The accumulator 12 is filled by the compres-
sor 1 forcing air through the open valve 10.
If the vehicle is on a sideways incline, valves
9a - 9d are also actuated individually.
The valves 9a, 9b and 9c, 9d are electrically
actuated in pairs (front axle and rear axle).
The compressor takes in the air through the
air filter 8 and the additional silencer 7.
The compressed air flows via the air drier 2,
the non-return valve 3a and the valves 9 to the
pneumatic springs.
The air leaves the system via exhaust sole-
noid 6, additional silencer 7 and air filter 8.
When air flows through the air drier 2, the
desiccant is regenerated.
292_022
292_021
